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Sign GraphQL API Requests for the Wowza ClearCaster GraphQL API

This repository contains brief code examples in several different languages that illustrate how to sign Wowza ClearCaster GraphQL API requests. See Wowza ClearCaster GraphQL API documentation for more information about the API and its use.

Please note double quotes may need to be escaped as follows \\\".

Prequisites

  • An API key
  • A secret key

To obtain and API key and secret key, sign in to the Wowza ClearCaster Manager, click the Manage tab and select Integrations. Then click Generate a New ClearCaster API Key, and copy and save the generated API Key, Secret Key, and GraphiQL URL for later use.

Javascript

  1. Install Node.js.
  2. Modify the index.js file to replace [API-Key-Here] and [Secret-Key-Here] with the API key values from the Wowza ClearCaster Manager Integrations tab.
  3. Run npm install then npm start.

Java

  1. Install JDK 8 or later.
  2. Modify src/main/Main.java to replace [API-Key-Here] and [Secret-Key-Here] with the API key values from the Wowza ClearCaster Manager Integrations tab.
  3. Run ./compile.sh then ./run.sh.

PHP

  1. Modify the graphqlRequest.php file to replace [API-Key-Here] and [Secret-Key-Here] with the API key values from the Wowza ClearCaster Manager Integrations tab.
  2. Host the file on a web server that has PHP 7 or later installed.
  3. Open a browser and the enter URL that points to graphqlRequest.php.

Python (3.x)

  1. Install Python.
  2. Modify the graphqlRequest.py file to replace [API-Key-Here] and [Secret-Key-Here] with the API key values from the Wowza ClearCaster Manager Integrations tab.
  3. Run ./run.sh.

.NET (C#)

  1. Install Visual Studio 2019.
  2. Open the solution ConsoleApp1/ConsoleApp1.sln.
  3. Modify the Program.cs file to replace [API-Key-Here] and [Secret-Key-Here] with the API key values from the Wowza ClearCaster Manager Integrations tab.
  4. Build and run the project.

cURL

  1. Modify the run.sh file to replace [API-Key-Here] and [Secret-Key-Here] with the API key values from the Wowza ClearCaster Manager Integrations tab.
  2. Run ./run.sh.

Postman (via Pre-Request Script)

  1. In the Body tab, select the radio button for GraphQL. Build your query in the Query window.
  2. In the Headers tab, create two key value pairs for Authorization and X-Date with variables as the values. Postman header tab with 2 key value pair headers
  3. In the Pre-Request Script tab, copy the following script.
var crypto = require('crypto-js');
let requestTime = Date.now();

let key = "{{APIKEY}}";
let secret = "{{SECRETKEY}}";

let domain = "clearcaster.c2.wowza.com";

let hmacDigest = crypto.enc.Hex.stringify(crypto.HmacSHA256(domain, crypto.HmacSHA256(requestTime.toString(), secret)));
let authorizationHeader =`HMAC-SHA256, Credential=${key}, SignedHeaders=host;x-date, Signature=${hmacDigest}`;

console.log(hmacDigest);

pm.environment.set("authorizationHeader", authorizationHeader);
pm.environment.set("timeNow", requestTime);
  1. Set your query to POST and URL to https://clearcaster.c2.wowza.com/graphql

License

This code is distributed under the BSD-3 License.

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